| /* Built-in functions */ |
| |
| #include "Python.h" |
| #include "Python-ast.h" |
| |
| #include "node.h" |
| #include "code.h" |
| |
| #include <ctype.h> |
| |
| #ifdef HAVE_LANGINFO_H |
| #include <langinfo.h> /* CODESET */ |
| #endif |
| |
| /* The default encoding used by the platform file system APIs |
| Can remain NULL for all platforms that don't have such a concept |
| |
| Don't forget to modify PyUnicode_DecodeFSDefault() if you touch any of the |
| values for Py_FileSystemDefaultEncoding! |
| */ |
| #if defined(MS_WINDOWS) && defined(HAVE_USABLE_WCHAR_T) |
| const char *Py_FileSystemDefaultEncoding = "mbcs"; |
| int Py_HasFileSystemDefaultEncoding = 1; |
| #elif defined(__APPLE__) |
| const char *Py_FileSystemDefaultEncoding = "utf-8"; |
| int Py_HasFileSystemDefaultEncoding = 1; |
| #elif defined(HAVE_LANGINFO_H) && defined(CODESET) |
| const char *Py_FileSystemDefaultEncoding = NULL; /* set by initfsencoding() */ |
| int Py_HasFileSystemDefaultEncoding = 0; |
| #else |
| const char *Py_FileSystemDefaultEncoding = "utf-8"; |
| int Py_HasFileSystemDefaultEncoding = 1; |
| #endif |
| |
| static PyObject * |
| builtin___build_class__(PyObject *self, PyObject *args, PyObject *kwds) |
| { |
| PyObject *func, *name, *bases, *mkw, *meta, *prep, *ns, *cell; |
| PyObject *cls = NULL; |
| Py_ssize_t nargs, nbases; |
| |
| assert(args != NULL); |
| if (!PyTuple_Check(args)) { |
| PyErr_SetString(PyExc_TypeError, |
| "__build_class__: args is not a tuple"); |
| return NULL; |
| } |
| nargs = PyTuple_GET_SIZE(args); |
| if (nargs < 2) { |
| PyErr_SetString(PyExc_TypeError, |
| "__build_class__: not enough arguments"); |
| return NULL; |
| } |
| func = PyTuple_GET_ITEM(args, 0); /* Better be callable */ |
| name = PyTuple_GET_ITEM(args, 1); |
| if (!PyUnicode_Check(name)) { |
| PyErr_SetString(PyExc_TypeError, |
| "__build_class__: name is not a string"); |
| return NULL; |
| } |
| bases = PyTuple_GetSlice(args, 2, nargs); |
| if (bases == NULL) |
| return NULL; |
| nbases = nargs - 2; |
| |
| if (kwds == NULL) { |
| meta = NULL; |
| mkw = NULL; |
| } |
| else { |
| mkw = PyDict_Copy(kwds); /* Don't modify kwds passed in! */ |
| if (mkw == NULL) { |
| Py_DECREF(bases); |
| return NULL; |
| } |
| meta = PyDict_GetItemString(mkw, "metaclass"); |
| if (meta != NULL) { |
| Py_INCREF(meta); |
| if (PyDict_DelItemString(mkw, "metaclass") < 0) { |
| Py_DECREF(meta); |
| Py_DECREF(mkw); |
| Py_DECREF(bases); |
| return NULL; |
| } |
| } |
| } |
| if (meta == NULL) { |
| if (PyTuple_GET_SIZE(bases) == 0) |
| meta = (PyObject *) (&PyType_Type); |
| else { |
| PyObject *base0 = PyTuple_GET_ITEM(bases, 0); |
| meta = (PyObject *) (base0->ob_type); |
| } |
| Py_INCREF(meta); |
| } |
| prep = PyObject_GetAttrString(meta, "__prepare__"); |
| if (prep == NULL) { |
| if (PyErr_ExceptionMatches(PyExc_AttributeError)) { |
| PyErr_Clear(); |
| ns = PyDict_New(); |
| } |
| else { |
| Py_DECREF(meta); |
| Py_XDECREF(mkw); |
| Py_DECREF(bases); |
| return NULL; |
| } |
| } |
| else { |
| PyObject *pargs = PyTuple_Pack(2, name, bases); |
| if (pargs == NULL) { |
| Py_DECREF(prep); |
| Py_DECREF(meta); |
| Py_XDECREF(mkw); |
| Py_DECREF(bases); |
| return NULL; |
| } |
| ns = PyEval_CallObjectWithKeywords(prep, pargs, mkw); |
| Py_DECREF(pargs); |
| Py_DECREF(prep); |
| } |
| if (ns == NULL) { |
| Py_DECREF(meta); |
| Py_XDECREF(mkw); |
| Py_DECREF(bases); |
| return NULL; |
| } |
| cell = PyObject_CallFunctionObjArgs(func, ns, NULL); |
| if (cell != NULL) { |
| PyObject *margs; |
| margs = PyTuple_Pack(3, name, bases, ns); |
| if (margs != NULL) { |
| cls = PyEval_CallObjectWithKeywords(meta, margs, mkw); |
| Py_DECREF(margs); |
| } |
| if (cls != NULL && PyCell_Check(cell)) { |
| Py_INCREF(cls); |
| PyCell_SET(cell, cls); |
| } |
| Py_DECREF(cell); |
| } |
| Py_DECREF(ns); |
| Py_DECREF(meta); |
| Py_XDECREF(mkw); |
| Py_DECREF(bases); |
| return cls; |
| } |
| |
| PyDoc_STRVAR(build_class_doc, |
| "__build_class__(func, name, *bases, metaclass=None, **kwds) -> class\n\ |
| \n\ |
| Internal helper function used by the class statement."); |
| |
| static PyObject * |
| builtin___import__(PyObject *self, PyObject *args, PyObject *kwds) |
| { |
| static char *kwlist[] = {"name", "globals", "locals", "fromlist", |
| "level", 0}; |
| char *name; |
| PyObject *globals = NULL; |
| PyObject *locals = NULL; |
| PyObject *fromlist = NULL; |
| int level = -1; |
| |
| if (!PyArg_ParseTupleAndKeywords(args, kwds, "s|OOOi:__import__", |
| kwlist, &name, &globals, &locals, &fromlist, &level)) |
| return NULL; |
| return PyImport_ImportModuleLevel(name, globals, locals, |
| fromlist, level); |
| } |
| |
| PyDoc_STRVAR(import_doc, |
| "__import__(name, globals={}, locals={}, fromlist=[], level=-1) -> module\n\ |
| \n\ |
| Import a module. Because this function is meant for use by the Python\n\ |
| interpreter and not for general use it is better to use\n\ |
| importlib.import_module() to programmatically import a module.\n\ |
| \n\ |
| The globals argument is only used to determine the context;\n\ |
| they are not modified. The locals argument is unused. The fromlist\n\ |
| should be a list of names to emulate ``from name import ...'', or an\n\ |
| empty list to emulate ``import name''.\n\ |
| When importing a module from a package, note that __import__('A.B', ...)\n\ |
| returns package A when fromlist is empty, but its submodule B when\n\ |
| fromlist is not empty. Level is used to determine whether to perform \n\ |
| absolute or relative imports. -1 is the original strategy of attempting\n\ |
| both absolute and relative imports, 0 is absolute, a positive number\n\ |
| is the number of parent directories to search relative to the current module."); |
| |
| |
| static PyObject * |
| builtin_abs(PyObject *self, PyObject *v) |
| { |
| return PyNumber_Absolute(v); |
| } |
| |
| PyDoc_STRVAR(abs_doc, |
| "abs(number) -> number\n\ |
| \n\ |
| Return the absolute value of the argument."); |
| |
| static PyObject * |
| builtin_all(PyObject *self, PyObject *v) |
| { |
| PyObject *it, *item; |
| PyObject *(*iternext)(PyObject *); |
| int cmp; |
| |
| it = PyObject_GetIter(v); |
| if (it == NULL) |
| return NULL; |
| iternext = *Py_TYPE(it)->tp_iternext; |
| |
| for (;;) { |
| item = iternext(it); |
| if (item == NULL) |
| break; |
| cmp = PyObject_IsTrue(item); |
| Py_DECREF(item); |
| if (cmp < 0) { |
| Py_DECREF(it); |
| return NULL; |
| } |
| if (cmp == 0) { |
| Py_DECREF(it); |
| Py_RETURN_FALSE; |
| } |
| } |
| Py_DECREF(it); |
| if (PyErr_Occurred()) { |
| if (PyErr_ExceptionMatches(PyExc_StopIteration)) |
| PyErr_Clear(); |
| else |
| return NULL; |
| } |
| Py_RETURN_TRUE; |
| } |
| |
| PyDoc_STRVAR(all_doc, |
| "all(iterable) -> bool\n\ |
| \n\ |
| Return True if bool(x) is True for all values x in the iterable."); |
| |
| static PyObject * |
| builtin_any(PyObject *self, PyObject *v) |
| { |
| PyObject *it, *item; |
| PyObject *(*iternext)(PyObject *); |
| int cmp; |
| |
| it = PyObject_GetIter(v); |
| if (it == NULL) |
| return NULL; |
| iternext = *Py_TYPE(it)->tp_iternext; |
| |
| for (;;) { |
| item = iternext(it); |
| if (item == NULL) |
| break; |
| cmp = PyObject_IsTrue(item); |
| Py_DECREF(item); |
| if (cmp < 0) { |
| Py_DECREF(it); |
| return NULL; |
| } |
| if (cmp == 1) { |
| Py_DECREF(it); |
| Py_RETURN_TRUE; |
| } |
| } |
| Py_DECREF(it); |
| if (PyErr_Occurred()) { |
| if (PyErr_ExceptionMatches(PyExc_StopIteration)) |
| PyErr_Clear(); |
| else |
| return NULL; |
| } |
| Py_RETURN_FALSE; |
| } |
| |
| PyDoc_STRVAR(any_doc, |
| "any(iterable) -> bool\n\ |
| \n\ |
| Return True if bool(x) is True for any x in the iterable."); |
| |
| static PyObject * |
| builtin_ascii(PyObject *self, PyObject *v) |
| { |
| return PyObject_ASCII(v); |
| } |
| |
| PyDoc_STRVAR(ascii_doc, |
| "ascii(object) -> string\n\ |
| \n\ |
| As repr(), return a string containing a printable representation of an\n\ |
| object, but escape the non-ASCII characters in the string returned by\n\ |
| repr() using \\x, \\u or \\U escapes. This generates a string similar\n\ |
| to that returned by repr() in Python 2."); |
| |
| |
| static PyObject * |
| builtin_bin(PyObject *self, PyObject *v) |
| { |
| return PyNumber_ToBase(v, 2); |
| } |
| |
| PyDoc_STRVAR(bin_doc, |
| "bin(number) -> string\n\ |
| \n\ |
| Return the binary representation of an integer."); |
| |
| |
| static PyObject * |
| builtin_callable(PyObject *self, PyObject *v) |
| { |
| return PyBool_FromLong((long)PyCallable_Check(v)); |
| } |
| |
| PyDoc_STRVAR(callable_doc, |
| "callable(object) -> bool\n\ |
| \n\ |
| Return whether the object is callable (i.e., some kind of function).\n\ |
| Note that classes are callable, as are instances of classes with a\n\ |
| __call__() method."); |
| |
| |
| typedef struct { |
| PyObject_HEAD |
| PyObject *func; |
| PyObject *it; |
| } filterobject; |
| |
| static PyObject * |
| filter_new(PyTypeObject *type, PyObject *args, PyObject *kwds) |
| { |
| PyObject *func, *seq; |
| PyObject *it; |
| filterobject *lz; |
| |
| if (type == &PyFilter_Type && !_PyArg_NoKeywords("filter()", kwds)) |
| return NULL; |
| |
| if (!PyArg_UnpackTuple(args, "filter", 2, 2, &func, &seq)) |
| return NULL; |
| |
| /* Get iterator. */ |
| it = PyObject_GetIter(seq); |
| if (it == NULL) |
| return NULL; |
| |
| /* create filterobject structure */ |
| lz = (filterobject *)type->tp_alloc(type, 0); |
| if (lz == NULL) { |
| Py_DECREF(it); |
| return NULL; |
| } |
| Py_INCREF(func); |
| lz->func = func; |
| lz->it = it; |
| |
| return (PyObject *)lz; |
| } |
| |
| static void |
| filter_dealloc(filterobject *lz) |
| { |
| PyObject_GC_UnTrack(lz); |
| Py_XDECREF(lz->func); |
| Py_XDECREF(lz->it); |
| Py_TYPE(lz)->tp_free(lz); |
| } |
| |
| static int |
| filter_traverse(filterobject *lz, visitproc visit, void *arg) |
| { |
| Py_VISIT(lz->it); |
| Py_VISIT(lz->func); |
| return 0; |
| } |
| |
| static PyObject * |
| filter_next(filterobject *lz) |
| { |
| PyObject *item; |
| PyObject *it = lz->it; |
| long ok; |
| PyObject *(*iternext)(PyObject *); |
| |
| iternext = *Py_TYPE(it)->tp_iternext; |
| for (;;) { |
| item = iternext(it); |
| if (item == NULL) |
| return NULL; |
| |
| if (lz->func == Py_None || lz->func == (PyObject *)&PyBool_Type) { |
| ok = PyObject_IsTrue(item); |
| } else { |
| PyObject *good; |
| good = PyObject_CallFunctionObjArgs(lz->func, |
| item, NULL); |
| if (good == NULL) { |
| Py_DECREF(item); |
| return NULL; |
| } |
| ok = PyObject_IsTrue(good); |
| Py_DECREF(good); |
| } |
| if (ok) |
| return item; |
| Py_DECREF(item); |
| } |
| } |
| |
| PyDoc_STRVAR(filter_doc, |
| "filter(function or None, iterable) --> filter object\n\ |
| \n\ |
| Return an iterator yielding those items of iterable for which function(item)\n\ |
| is true. If function is None, return the items that are true."); |
| |
| PyTypeObject PyFilter_Type = { |
| PyVarObject_HEAD_INIT(&PyType_Type, 0) |
| "filter", /* tp_name */ |
| sizeof(filterobject), /* tp_basicsize */ |
| 0, /* tp_itemsize */ |
| /* methods */ |
| (destructor)filter_dealloc, /* tp_dealloc */ |
| 0, /* tp_print */ |
| 0, /* tp_getattr */ |
| 0, /* tp_setattr */ |
| 0, /* tp_reserved */ |
| 0, /* tp_repr */ |
| 0, /* tp_as_number */ |
| 0, /* tp_as_sequence */ |
| 0, /* tp_as_mapping */ |
| 0, /* tp_hash */ |
| 0, /* tp_call */ |
| 0, /* tp_str */ |
| PyObject_GenericGetAttr, /* tp_getattro */ |
| 0, /* tp_setattro */ |
| 0, /* tp_as_buffer */ |
| Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | |
| Py_TPFLAGS_BASETYPE, /* tp_flags */ |
| filter_doc, /* tp_doc */ |
| (traverseproc)filter_traverse, /* tp_traverse */ |
| 0, /* tp_clear */ |
| 0, /* tp_richcompare */ |
| 0, /* tp_weaklistoffset */ |
| PyObject_SelfIter, /* tp_iter */ |
| (iternextfunc)filter_next, /* tp_iternext */ |
| 0, /* tp_methods */ |
| 0, /* tp_members */ |
| 0, /* tp_getset */ |
| 0, /* tp_base */ |
| 0, /* tp_dict */ |
| 0, /* tp_descr_get */ |
| 0, /* tp_descr_set */ |
| 0, /* tp_dictoffset */ |
| 0, /* tp_init */ |
| PyType_GenericAlloc, /* tp_alloc */ |
| filter_new, /* tp_new */ |
| PyObject_GC_Del, /* tp_free */ |
| }; |
| |
| |
| static PyObject * |
| builtin_format(PyObject *self, PyObject *args) |
| { |
| PyObject *value; |
| PyObject *format_spec = NULL; |
| |
| if (!PyArg_ParseTuple(args, "O|U:format", &value, &format_spec)) |
| return NULL; |
| |
| return PyObject_Format(value, format_spec); |
| } |
| |
| PyDoc_STRVAR(format_doc, |
| "format(value[, format_spec]) -> string\n\ |
| \n\ |
| Returns value.__format__(format_spec)\n\ |
| format_spec defaults to \"\""); |
| |
| static PyObject * |
| builtin_chr(PyObject *self, PyObject *args) |
| { |
| int x; |
| |
| if (!PyArg_ParseTuple(args, "i:chr", &x)) |
| return NULL; |
| |
| return PyUnicode_FromOrdinal(x); |
| } |
| |
| PyDoc_VAR(chr_doc) = PyDoc_STR( |
| "chr(i) -> Unicode character\n\ |
| \n\ |
| Return a Unicode string of one character with ordinal i; 0 <= i <= 0x10ffff." |
| ) |
| #ifndef Py_UNICODE_WIDE |
| PyDoc_STR( |
| "\nIf 0x10000 <= i, a surrogate pair is returned." |
| ) |
| #endif |
| ; |
| |
| |
| static char * |
| source_as_string(PyObject *cmd, char *funcname, char *what, PyCompilerFlags *cf) |
| { |
| char *str; |
| Py_ssize_t size; |
| |
| if (PyUnicode_Check(cmd)) { |
| cf->cf_flags |= PyCF_IGNORE_COOKIE; |
| cmd = _PyUnicode_AsDefaultEncodedString(cmd, NULL); |
| if (cmd == NULL) |
| return NULL; |
| } |
| else if (!PyObject_CheckReadBuffer(cmd)) { |
| PyErr_Format(PyExc_TypeError, |
| "%s() arg 1 must be a %s object", |
| funcname, what); |
| return NULL; |
| } |
| if (PyObject_AsReadBuffer(cmd, (const void **)&str, &size) < 0) { |
| return NULL; |
| } |
| if (strlen(str) != size) { |
| PyErr_SetString(PyExc_TypeError, |
| "source code string cannot contain null bytes"); |
| return NULL; |
| } |
| return str; |
| } |
| |
| static PyObject * |
| builtin_compile(PyObject *self, PyObject *args, PyObject *kwds) |
| { |
| char *str; |
| PyObject *filename_obj; |
| char *filename; |
| char *startstr; |
| int mode = -1; |
| int dont_inherit = 0; |
| int supplied_flags = 0; |
| int optimize = -1; |
| int is_ast; |
| PyCompilerFlags cf; |
| PyObject *cmd; |
| static char *kwlist[] = {"source", "filename", "mode", "flags", |
| "dont_inherit", "optimize", NULL}; |
| int start[] = {Py_file_input, Py_eval_input, Py_single_input}; |
| PyObject *result; |
| |
| if (!PyArg_ParseTupleAndKeywords(args, kwds, "OO&s|iii:compile", kwlist, |
| &cmd, |
| PyUnicode_FSConverter, &filename_obj, |
| &startstr, &supplied_flags, |
| &dont_inherit, &optimize)) |
| return NULL; |
| |
| filename = PyBytes_AS_STRING(filename_obj); |
| cf.cf_flags = supplied_flags | PyCF_SOURCE_IS_UTF8; |
| |
| if (supplied_flags & |
| ~(PyCF_MASK | PyCF_MASK_OBSOLETE | PyCF_DONT_IMPLY_DEDENT | PyCF_ONLY_AST)) |
| { |
| PyErr_SetString(PyExc_ValueError, |
| "compile(): unrecognised flags"); |
| goto error; |
| } |
| /* XXX Warn if (supplied_flags & PyCF_MASK_OBSOLETE) != 0? */ |
| |
| if (optimize < -1 || optimize > 2) { |
| PyErr_SetString(PyExc_ValueError, |
| "compile(): invalid optimize value"); |
| goto error; |
| } |
| |
| if (!dont_inherit) { |
| PyEval_MergeCompilerFlags(&cf); |
| } |
| |
| if (strcmp(startstr, "exec") == 0) |
| mode = 0; |
| else if (strcmp(startstr, "eval") == 0) |
| mode = 1; |
| else if (strcmp(startstr, "single") == 0) |
| mode = 2; |
| else { |
| PyErr_SetString(PyExc_ValueError, |
| "compile() arg 3 must be 'exec', 'eval' or 'single'"); |
| goto error; |
| } |
| |
| is_ast = PyAST_Check(cmd); |
| if (is_ast == -1) |
| goto error; |
| if (is_ast) { |
| if (supplied_flags & PyCF_ONLY_AST) { |
| Py_INCREF(cmd); |
| result = cmd; |
| } |
| else { |
| PyArena *arena; |
| mod_ty mod; |
| |
| arena = PyArena_New(); |
| mod = PyAST_obj2mod(cmd, arena, mode); |
| if (mod == NULL) { |
| PyArena_Free(arena); |
| goto error; |
| } |
| result = (PyObject*)PyAST_CompileEx(mod, filename, |
| &cf, optimize, arena); |
| PyArena_Free(arena); |
| } |
| goto finally; |
| } |
| |
| str = source_as_string(cmd, "compile", "string, bytes, AST or code", &cf); |
| if (str == NULL) |
| goto error; |
| |
| result = Py_CompileStringExFlags(str, filename, start[mode], &cf, optimize); |
| goto finally; |
| |
| error: |
| result = NULL; |
| finally: |
| Py_DECREF(filename_obj); |
| return result; |
| } |
| |
| PyDoc_STRVAR(compile_doc, |
| "compile(source, filename, mode[, flags[, dont_inherit]]) -> code object\n\ |
| \n\ |
| Compile the source string (a Python module, statement or expression)\n\ |
| into a code object that can be executed by exec() or eval().\n\ |
| The filename will be used for run-time error messages.\n\ |
| The mode must be 'exec' to compile a module, 'single' to compile a\n\ |
| single (interactive) statement, or 'eval' to compile an expression.\n\ |
| The flags argument, if present, controls which future statements influence\n\ |
| the compilation of the code.\n\ |
| The dont_inherit argument, if non-zero, stops the compilation inheriting\n\ |
| the effects of any future statements in effect in the code calling\n\ |
| compile; if absent or zero these statements do influence the compilation,\n\ |
| in addition to any features explicitly specified."); |
| |
| static PyObject * |
| builtin_dir(PyObject *self, PyObject *args) |
| { |
| PyObject *arg = NULL; |
| |
| if (!PyArg_UnpackTuple(args, "dir", 0, 1, &arg)) |
| return NULL; |
| return PyObject_Dir(arg); |
| } |
| |
| PyDoc_STRVAR(dir_doc, |
| "dir([object]) -> list of strings\n" |
| "\n" |
| "If called without an argument, return the names in the current scope.\n" |
| "Else, return an alphabetized list of names comprising (some of) the attributes\n" |
| "of the given object, and of attributes reachable from it.\n" |
| "If the object supplies a method named __dir__, it will be used; otherwise\n" |
| "the default dir() logic is used and returns:\n" |
| " for a module object: the module's attributes.\n" |
| " for a class object: its attributes, and recursively the attributes\n" |
| " of its bases.\n" |
| " for any other object: its attributes, its class's attributes, and\n" |
| " recursively the attributes of its class's base classes."); |
| |
| static PyObject * |
| builtin_divmod(PyObject *self, PyObject *args) |
| { |
| PyObject *v, *w; |
| |
| if (!PyArg_UnpackTuple(args, "divmod", 2, 2, &v, &w)) |
| return NULL; |
| return PyNumber_Divmod(v, w); |
| } |
| |
| PyDoc_STRVAR(divmod_doc, |
| "divmod(x, y) -> (div, mod)\n\ |
| \n\ |
| Return the tuple ((x-x%y)/y, x%y). Invariant: div*y + mod == x."); |
| |
| |
| static PyObject * |
| builtin_eval(PyObject *self, PyObject *args) |
| { |
| PyObject *cmd, *result, *tmp = NULL; |
| PyObject *globals = Py_None, *locals = Py_None; |
| char *str; |
| PyCompilerFlags cf; |
| |
| if (!PyArg_UnpackTuple(args, "eval", 1, 3, &cmd, &globals, &locals)) |
| return NULL; |
| if (locals != Py_None && !PyMapping_Check(locals)) { |
| PyErr_SetString(PyExc_TypeError, "locals must be a mapping"); |
| return NULL; |
| } |
| if (globals != Py_None && !PyDict_Check(globals)) { |
| PyErr_SetString(PyExc_TypeError, PyMapping_Check(globals) ? |
| "globals must be a real dict; try eval(expr, {}, mapping)" |
| : "globals must be a dict"); |
| return NULL; |
| } |
| if (globals == Py_None) { |
| globals = PyEval_GetGlobals(); |
| if (locals == Py_None) |
| locals = PyEval_GetLocals(); |
| } |
| else if (locals == Py_None) |
| locals = globals; |
| |
| if (globals == NULL || locals == NULL) { |
| PyErr_SetString(PyExc_TypeError, |
| "eval must be given globals and locals " |
| "when called without a frame"); |
| return NULL; |
| } |
| |
| if (PyDict_GetItemString(globals, "__builtins__") == NULL) { |
| if (PyDict_SetItemString(globals, "__builtins__", |
| PyEval_GetBuiltins()) != 0) |
| return NULL; |
| } |
| |
| if (PyCode_Check(cmd)) { |
| if (PyCode_GetNumFree((PyCodeObject *)cmd) > 0) { |
| PyErr_SetString(PyExc_TypeError, |
| "code object passed to eval() may not contain free variables"); |
| return NULL; |
| } |
| return PyEval_EvalCode(cmd, globals, locals); |
| } |
| |
| cf.cf_flags = PyCF_SOURCE_IS_UTF8; |
| str = source_as_string(cmd, "eval", "string, bytes or code", &cf); |
| if (str == NULL) |
| return NULL; |
| |
| while (*str == ' ' || *str == '\t') |
| str++; |
| |
| (void)PyEval_MergeCompilerFlags(&cf); |
| result = PyRun_StringFlags(str, Py_eval_input, globals, locals, &cf); |
| Py_XDECREF(tmp); |
| return result; |
| } |
| |
| PyDoc_STRVAR(eval_doc, |
| "eval(source[, globals[, locals]]) -> value\n\ |
| \n\ |
| Evaluate the source in the context of globals and locals.\n\ |
| The source may be a string representing a Python expression\n\ |
| or a code object as returned by compile().\n\ |
| The globals must be a dictionary and locals can be any mapping,\n\ |
| defaulting to the current globals and locals.\n\ |
| If only globals is given, locals defaults to it.\n"); |
| |
| static PyObject * |
| builtin_exec(PyObject *self, PyObject *args) |
| { |
| PyObject *v; |
| PyObject *prog, *globals = Py_None, *locals = Py_None; |
| int plain = 0; |
| |
| if (!PyArg_UnpackTuple(args, "exec", 1, 3, &prog, &globals, &locals)) |
| return NULL; |
| |
| if (globals == Py_None) { |
| globals = PyEval_GetGlobals(); |
| if (locals == Py_None) { |
| locals = PyEval_GetLocals(); |
| plain = 1; |
| } |
| if (!globals || !locals) { |
| PyErr_SetString(PyExc_SystemError, |
| "globals and locals cannot be NULL"); |
| return NULL; |
| } |
| } |
| else if (locals == Py_None) |
| locals = globals; |
| |
| if (!PyDict_Check(globals)) { |
| PyErr_Format(PyExc_TypeError, "exec() arg 2 must be a dict, not %.100s", |
| globals->ob_type->tp_name); |
| return NULL; |
| } |
| if (!PyMapping_Check(locals)) { |
| PyErr_Format(PyExc_TypeError, |
| "arg 3 must be a mapping or None, not %.100s", |
| locals->ob_type->tp_name); |
| return NULL; |
| } |
| if (PyDict_GetItemString(globals, "__builtins__") == NULL) { |
| if (PyDict_SetItemString(globals, "__builtins__", |
| PyEval_GetBuiltins()) != 0) |
| return NULL; |
| } |
| |
| if (PyCode_Check(prog)) { |
| if (PyCode_GetNumFree((PyCodeObject *)prog) > 0) { |
| PyErr_SetString(PyExc_TypeError, |
| "code object passed to exec() may not " |
| "contain free variables"); |
| return NULL; |
| } |
| v = PyEval_EvalCode(prog, globals, locals); |
| } |
| else { |
| char *str; |
| PyCompilerFlags cf; |
| cf.cf_flags = PyCF_SOURCE_IS_UTF8; |
| str = source_as_string(prog, "exec", |
| "string, bytes or code", &cf); |
| if (str == NULL) |
| return NULL; |
| if (PyEval_MergeCompilerFlags(&cf)) |
| v = PyRun_StringFlags(str, Py_file_input, globals, |
| locals, &cf); |
| else |
| v = PyRun_String(str, Py_file_input, globals, locals); |
| } |
| if (v == NULL) |
| return NULL; |
| Py_DECREF(v); |
| Py_RETURN_NONE; |
| } |
| |
| PyDoc_STRVAR(exec_doc, |
| "exec(object[, globals[, locals]])\n\ |
| \n\ |
| Read and execute code from an object, which can be a string or a code\n\ |
| object.\n\ |
| The globals and locals are dictionaries, defaulting to the current\n\ |
| globals and locals. If only globals is given, locals defaults to it."); |
| |
| |
| static PyObject * |
| builtin_getattr(PyObject *self, PyObject *args) |
| { |
| PyObject *v, *result, *dflt = NULL; |
| PyObject *name; |
| |
| if (!PyArg_UnpackTuple(args, "getattr", 2, 3, &v, &name, &dflt)) |
| return NULL; |
| |
| if (!PyUnicode_Check(name)) { |
| PyErr_SetString(PyExc_TypeError, |
| "getattr(): attribute name must be string"); |
| return NULL; |
| } |
| result = PyObject_GetAttr(v, name); |
| if (result == NULL && dflt != NULL && |
| PyErr_ExceptionMatches(PyExc_AttributeError)) |
| { |
| PyErr_Clear(); |
| Py_INCREF(dflt); |
| result = dflt; |
| } |
| return result; |
| } |
| |
| PyDoc_STRVAR(getattr_doc, |
| "getattr(object, name[, default]) -> value\n\ |
| \n\ |
| Get a named attribute from an object; getattr(x, 'y') is equivalent to x.y.\n\ |
| When a default argument is given, it is returned when the attribute doesn't\n\ |
| exist; without it, an exception is raised in that case."); |
| |
| |
| static PyObject * |
| builtin_globals(PyObject *self) |
| { |
| PyObject *d; |
| |
| d = PyEval_GetGlobals(); |
| Py_XINCREF(d); |
| return d; |
| } |
| |
| PyDoc_STRVAR(globals_doc, |
| "globals() -> dictionary\n\ |
| \n\ |
| Return the dictionary containing the current scope's global variables."); |
| |
| |
| static PyObject * |
| builtin_hasattr(PyObject *self, PyObject *args) |
| { |
| PyObject *v; |
| PyObject *name; |
| |
| if (!PyArg_UnpackTuple(args, "hasattr", 2, 2, &v, &name)) |
| return NULL; |
| if (!PyUnicode_Check(name)) { |
| PyErr_SetString(PyExc_TypeError, |
| "hasattr(): attribute name must be string"); |
| return NULL; |
| } |
| v = PyObject_GetAttr(v, name); |
| if (v == NULL) { |
| if (PyErr_ExceptionMatches(PyExc_AttributeError)) { |
| PyErr_Clear(); |
| Py_RETURN_FALSE; |
| } |
| return NULL; |
| } |
| Py_DECREF(v); |
| Py_RETURN_TRUE; |
| } |
| |
| PyDoc_STRVAR(hasattr_doc, |
| "hasattr(object, name) -> bool\n\ |
| \n\ |
| Return whether the object has an attribute with the given name.\n\ |
| (This is done by calling getattr(object, name) and catching AttributeError.)"); |
| |
| |
| static PyObject * |
| builtin_id(PyObject *self, PyObject *v) |
| { |
| return PyLong_FromVoidPtr(v); |
| } |
| |
| PyDoc_STRVAR(id_doc, |
| "id(object) -> integer\n\ |
| \n\ |
| Return the identity of an object. This is guaranteed to be unique among\n\ |
| simultaneously existing objects. (Hint: it's the object's memory address.)"); |
| |
| |
| /* map object ************************************************************/ |
| |
| typedef struct { |
| PyObject_HEAD |
| PyObject *iters; |
| PyObject *func; |
| } mapobject; |
| |
| static PyObject * |
| map_new(PyTypeObject *type, PyObject *args, PyObject *kwds) |
| { |
| PyObject *it, *iters, *func; |
| mapobject *lz; |
| Py_ssize_t numargs, i; |
| |
| if (type == &PyMap_Type && !_PyArg_NoKeywords("map()", kwds)) |
| return NULL; |
| |
| numargs = PyTuple_Size(args); |
| if (numargs < 2) { |
| PyErr_SetString(PyExc_TypeError, |
| "map() must have at least two arguments."); |
| return NULL; |
| } |
| |
| iters = PyTuple_New(numargs-1); |
| if (iters == NULL) |
| return NULL; |
| |
| for (i=1 ; i<numargs ; i++) { |
| /* Get iterator. */ |
| it = PyObject_GetIter(PyTuple_GET_ITEM(args, i)); |
| if (it == NULL) { |
| Py_DECREF(iters); |
| return NULL; |
| } |
| PyTuple_SET_ITEM(iters, i-1, it); |
| } |
| |
| /* create mapobject structure */ |
| lz = (mapobject *)type->tp_alloc(type, 0); |
| if (lz == NULL) { |
| Py_DECREF(iters); |
| return NULL; |
| } |
| lz->iters = iters; |
| func = PyTuple_GET_ITEM(args, 0); |
| Py_INCREF(func); |
| lz->func = func; |
| |
| return (PyObject *)lz; |
| } |
| |
| static void |
| map_dealloc(mapobject *lz) |
| { |
| PyObject_GC_UnTrack(lz); |
| Py_XDECREF(lz->iters); |
| Py_XDECREF(lz->func); |
| Py_TYPE(lz)->tp_free(lz); |
| } |
| |
| static int |
| map_traverse(mapobject *lz, visitproc visit, void *arg) |
| { |
| Py_VISIT(lz->iters); |
| Py_VISIT(lz->func); |
| return 0; |
| } |
| |
| static PyObject * |
| map_next(mapobject *lz) |
| { |
| PyObject *val; |
| PyObject *argtuple; |
| PyObject *result; |
| Py_ssize_t numargs, i; |
| |
| numargs = PyTuple_Size(lz->iters); |
| argtuple = PyTuple_New(numargs); |
| if (argtuple == NULL) |
| return NULL; |
| |
| for (i=0 ; i<numargs ; i++) { |
| val = PyIter_Next(PyTuple_GET_ITEM(lz->iters, i)); |
| if (val == NULL) { |
| Py_DECREF(argtuple); |
| return NULL; |
| } |
| PyTuple_SET_ITEM(argtuple, i, val); |
| } |
| result = PyObject_Call(lz->func, argtuple, NULL); |
| Py_DECREF(argtuple); |
| return result; |
| } |
| |
| PyDoc_STRVAR(map_doc, |
| "map(func, *iterables) --> map object\n\ |
| \n\ |
| Make an iterator that computes the function using arguments from\n\ |
| each of the iterables. Stops when the shortest iterable is exhausted."); |
| |
| PyTypeObject PyMap_Type = { |
| PyVarObject_HEAD_INIT(&PyType_Type, 0) |
| "map", /* tp_name */ |
| sizeof(mapobject), /* tp_basicsize */ |
| 0, /* tp_itemsize */ |
| /* methods */ |
| (destructor)map_dealloc, /* tp_dealloc */ |
| 0, /* tp_print */ |
| 0, /* tp_getattr */ |
| 0, /* tp_setattr */ |
| 0, /* tp_reserved */ |
| 0, /* tp_repr */ |
| 0, /* tp_as_number */ |
| 0, /* tp_as_sequence */ |
| 0, /* tp_as_mapping */ |
| 0, /* tp_hash */ |
| 0, /* tp_call */ |
| 0, /* tp_str */ |
| PyObject_GenericGetAttr, /* tp_getattro */ |
| 0, /* tp_setattro */ |
| 0, /* tp_as_buffer */ |
| Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | |
| Py_TPFLAGS_BASETYPE, /* tp_flags */ |
| map_doc, /* tp_doc */ |
| (traverseproc)map_traverse, /* tp_traverse */ |
| 0, /* tp_clear */ |
| 0, /* tp_richcompare */ |
| 0, /* tp_weaklistoffset */ |
| PyObject_SelfIter, /* tp_iter */ |
| (iternextfunc)map_next, /* tp_iternext */ |
| 0, /* tp_methods */ |
| 0, /* tp_members */ |
| 0, /* tp_getset */ |
| 0, /* tp_base */ |
| 0, /* tp_dict */ |
| 0, /* tp_descr_get */ |
| 0, /* tp_descr_set */ |
| 0, /* tp_dictoffset */ |
| 0, /* tp_init */ |
| PyType_GenericAlloc, /* tp_alloc */ |
| map_new, /* tp_new */ |
| PyObject_GC_Del, /* tp_free */ |
| }; |
| |
| static PyObject * |
| builtin_next(PyObject *self, PyObject *args) |
| { |
| PyObject *it, *res; |
| PyObject *def = NULL; |
| |
| if (!PyArg_UnpackTuple(args, "next", 1, 2, &it, &def)) |
| return NULL; |
| if (!PyIter_Check(it)) { |
| PyErr_Format(PyExc_TypeError, |
| "%.200s object is not an iterator", |
| it->ob_type->tp_name); |
| return NULL; |
| } |
| |
| res = (*it->ob_type->tp_iternext)(it); |
| if (res != NULL) { |
| return res; |
| } else if (def != NULL) { |
| if (PyErr_Occurred()) { |
| if(!PyErr_ExceptionMatches(PyExc_StopIteration)) |
| return NULL; |
| PyErr_Clear(); |
| } |
| Py_INCREF(def); |
| return def; |
| } else if (PyErr_Occurred()) { |
| return NULL; |
| } else { |
| PyErr_SetNone(PyExc_StopIteration); |
| return NULL; |
| } |
| } |
| |
| PyDoc_STRVAR(next_doc, |
| "next(iterator[, default])\n\ |
| \n\ |
| Return the next item from the iterator. If default is given and the iterator\n\ |
| is exhausted, it is returned instead of raising StopIteration."); |
| |
| |
| static PyObject * |
| builtin_setattr(PyObject *self, PyObject *args) |
| { |
| PyObject *v; |
| PyObject *name; |
| PyObject *value; |
| |
| if (!PyArg_UnpackTuple(args, "setattr", 3, 3, &v, &name, &value)) |
| return NULL; |
| if (PyObject_SetAttr(v, name, value) != 0) |
| return NULL; |
| Py_INCREF(Py_None); |
| return Py_None; |
| } |
| |
| PyDoc_STRVAR(setattr_doc, |
| "setattr(object, name, value)\n\ |
| \n\ |
| Set a named attribute on an object; setattr(x, 'y', v) is equivalent to\n\ |
| ``x.y = v''."); |
| |
| |
| static PyObject * |
| builtin_delattr(PyObject *self, PyObject *args) |
| { |
| PyObject *v; |
| PyObject *name; |
| |
| if (!PyArg_UnpackTuple(args, "delattr", 2, 2, &v, &name)) |
| return NULL; |
| if (PyObject_SetAttr(v, name, (PyObject *)NULL) != 0) |
| return NULL; |
| Py_INCREF(Py_None); |
| return Py_None; |
| } |
| |
| PyDoc_STRVAR(delattr_doc, |
| "delattr(object, name)\n\ |
| \n\ |
| Delete a named attribute on an object; delattr(x, 'y') is equivalent to\n\ |
| ``del x.y''."); |
| |
| |
| static PyObject * |
| builtin_hash(PyObject *self, PyObject *v) |
| { |
| Py_hash_t x; |
| |
| x = PyObject_Hash(v); |
| if (x == -1) |
| return NULL; |
| return PyLong_FromSsize_t(x); |
| } |
| |
| PyDoc_STRVAR(hash_doc, |
| "hash(object) -> integer\n\ |
| \n\ |
| Return a hash value for the object. Two objects with the same value have\n\ |
| the same hash value. The reverse is not necessarily true, but likely."); |
| |
| |
| static PyObject * |
| builtin_hex(PyObject *self, PyObject *v) |
| { |
| return PyNumber_ToBase(v, 16); |
| } |
| |
| PyDoc_STRVAR(hex_doc, |
| "hex(number) -> string\n\ |
| \n\ |
| Return the hexadecimal representation of an integer."); |
| |
| |
| static PyObject * |
| builtin_iter(PyObject *self, PyObject *args) |
| { |
| PyObject *v, *w = NULL; |
| |
| if (!PyArg_UnpackTuple(args, "iter", 1, 2, &v, &w)) |
| return NULL; |
| if (w == NULL) |
| return PyObject_GetIter(v); |
| if (!PyCallable_Check(v)) { |
| PyErr_SetString(PyExc_TypeError, |
| "iter(v, w): v must be callable"); |
| return NULL; |
| } |
| return PyCallIter_New(v, w); |
| } |
| |
| PyDoc_STRVAR(iter_doc, |
| "iter(iterable) -> iterator\n\ |
| iter(callable, sentinel) -> iterator\n\ |
| \n\ |
| Get an iterator from an object. In the first form, the argument must\n\ |
| supply its own iterator, or be a sequence.\n\ |
| In the second form, the callable is called until it returns the sentinel."); |
| |
| |
| static PyObject * |
| builtin_len(PyObject *self, PyObject *v) |
| { |
| Py_ssize_t res; |
| |
| res = PyObject_Size(v); |
| if (res < 0 && PyErr_Occurred()) |
| return NULL; |
| return PyLong_FromSsize_t(res); |
| } |
| |
| PyDoc_STRVAR(len_doc, |
| "len(object) -> integer\n\ |
| \n\ |
| Return the number of items of a sequence or mapping."); |
| |
| |
| static PyObject * |
| builtin_locals(PyObject *self) |
| { |
| PyObject *d; |
| |
| d = PyEval_GetLocals(); |
| Py_XINCREF(d); |
| return d; |
| } |
| |
| PyDoc_STRVAR(locals_doc, |
| "locals() -> dictionary\n\ |
| \n\ |
| Update and return a dictionary containing the current scope's local variables."); |
| |
| |
| static PyObject * |
| min_max(PyObject *args, PyObject *kwds, int op) |
| { |
| PyObject *v, *it, *item, *val, *maxitem, *maxval, *keyfunc=NULL; |
| const char *name = op == Py_LT ? "min" : "max"; |
| |
| if (PyTuple_Size(args) > 1) |
| v = args; |
| else if (!PyArg_UnpackTuple(args, (char *)name, 1, 1, &v)) |
| return NULL; |
| |
| if (kwds != NULL && PyDict_Check(kwds) && PyDict_Size(kwds)) { |
| keyfunc = PyDict_GetItemString(kwds, "key"); |
| if (PyDict_Size(kwds)!=1 || keyfunc == NULL) { |
| PyErr_Format(PyExc_TypeError, |
| "%s() got an unexpected keyword argument", name); |
| return NULL; |
| } |
| Py_INCREF(keyfunc); |
| } |
| |
| it = PyObject_GetIter(v); |
| if (it == NULL) { |
| Py_XDECREF(keyfunc); |
| return NULL; |
| } |
| |
| maxitem = NULL; /* the result */ |
| maxval = NULL; /* the value associated with the result */ |
| while (( item = PyIter_Next(it) )) { |
| /* get the value from the key function */ |
| if (keyfunc != NULL) { |
| val = PyObject_CallFunctionObjArgs(keyfunc, item, NULL); |
| if (val == NULL) |
| goto Fail_it_item; |
| } |
| /* no key function; the value is the item */ |
| else { |
| val = item; |
| Py_INCREF(val); |
| } |
| |
| /* maximum value and item are unset; set them */ |
| if (maxval == NULL) { |
| maxitem = item; |
| maxval = val; |
| } |
| /* maximum value and item are set; update them as necessary */ |
| else { |
| int cmp = PyObject_RichCompareBool(val, maxval, op); |
| if (cmp < 0) |
| goto Fail_it_item_and_val; |
| else if (cmp > 0) { |
| Py_DECREF(maxval); |
| Py_DECREF(maxitem); |
| maxval = val; |
| maxitem = item; |
| } |
| else { |
| Py_DECREF(item); |
| Py_DECREF(val); |
| } |
| } |
| } |
| if (PyErr_Occurred()) |
| goto Fail_it; |
| if (maxval == NULL) { |
| PyErr_Format(PyExc_ValueError, |
| "%s() arg is an empty sequence", name); |
| assert(maxitem == NULL); |
| } |
| else |
| Py_DECREF(maxval); |
| Py_DECREF(it); |
| Py_XDECREF(keyfunc); |
| return maxitem; |
| |
| Fail_it_item_and_val: |
| Py_DECREF(val); |
| Fail_it_item: |
| Py_DECREF(item); |
| Fail_it: |
| Py_XDECREF(maxval); |
| Py_XDECREF(maxitem); |
| Py_DECREF(it); |
| Py_XDECREF(keyfunc); |
| return NULL; |
| } |
| |
| static PyObject * |
| builtin_min(PyObject *self, PyObject *args, PyObject *kwds) |
| { |
| return min_max(args, kwds, Py_LT); |
| } |
| |
| PyDoc_STRVAR(min_doc, |
| "min(iterable[, key=func]) -> value\n\ |
| min(a, b, c, ...[, key=func]) -> value\n\ |
| \n\ |
| With a single iterable argument, return its smallest item.\n\ |
| With two or more arguments, return the smallest argument."); |
| |
| |
| static PyObject * |
| builtin_max(PyObject *self, PyObject *args, PyObject *kwds) |
| { |
| return min_max(args, kwds, Py_GT); |
| } |
| |
| PyDoc_STRVAR(max_doc, |
| "max(iterable[, key=func]) -> value\n\ |
| max(a, b, c, ...[, key=func]) -> value\n\ |
| \n\ |
| With a single iterable argument, return its largest item.\n\ |
| With two or more arguments, return the largest argument."); |
| |
| |
| static PyObject * |
| builtin_oct(PyObject *self, PyObject *v) |
| { |
| return PyNumber_ToBase(v, 8); |
| } |
| |
| PyDoc_STRVAR(oct_doc, |
| "oct(number) -> string\n\ |
| \n\ |
| Return the octal representation of an integer."); |
| |
| |
| static PyObject * |
| builtin_ord(PyObject *self, PyObject* obj) |
| { |
| long ord; |
| Py_ssize_t size; |
| |
| if (PyBytes_Check(obj)) { |
| size = PyBytes_GET_SIZE(obj); |
| if (size == 1) { |
| ord = (long)((unsigned char)*PyBytes_AS_STRING(obj)); |
| return PyLong_FromLong(ord); |
| } |
| } |
| else if (PyUnicode_Check(obj)) { |
| size = PyUnicode_GET_SIZE(obj); |
| if (size == 1) { |
| ord = (long)*PyUnicode_AS_UNICODE(obj); |
| return PyLong_FromLong(ord); |
| } |
| #ifndef Py_UNICODE_WIDE |
| if (size == 2) { |
| /* Decode a valid surrogate pair */ |
| int c0 = PyUnicode_AS_UNICODE(obj)[0]; |
| int c1 = PyUnicode_AS_UNICODE(obj)[1]; |
| if (0xD800 <= c0 && c0 <= 0xDBFF && |
| 0xDC00 <= c1 && c1 <= 0xDFFF) { |
| ord = ((((c0 & 0x03FF) << 10) | (c1 & 0x03FF)) + |
| 0x00010000); |
| return PyLong_FromLong(ord); |
| } |
| } |
| #endif |
| } |
| else if (PyByteArray_Check(obj)) { |
| /* XXX Hopefully this is temporary */ |
| size = PyByteArray_GET_SIZE(obj); |
| if (size == 1) { |
| ord = (long)((unsigned char)*PyByteArray_AS_STRING(obj)); |
| return PyLong_FromLong(ord); |
| } |
| } |
| else { |
| PyErr_Format(PyExc_TypeError, |
| "ord() expected string of length 1, but " \ |
| "%.200s found", obj->ob_type->tp_name); |
| return NULL; |
| } |
| |
| PyErr_Format(PyExc_TypeError, |
| "ord() expected a character, " |
| "but string of length %zd found", |
| size); |
| return NULL; |
| } |
| |
| PyDoc_VAR(ord_doc) = PyDoc_STR( |
| "ord(c) -> integer\n\ |
| \n\ |
| Return the integer ordinal of a one-character string." |
| ) |
| #ifndef Py_UNICODE_WIDE |
| PyDoc_STR( |
| "\nA valid surrogate pair is also accepted." |
| ) |
| #endif |
| ; |
| |
| |
| static PyObject * |
| builtin_pow(PyObject *self, PyObject *args) |
| { |
| PyObject *v, *w, *z = Py_None; |
| |
| if (!PyArg_UnpackTuple(args, "pow", 2, 3, &v, &w, &z)) |
| return NULL; |
| return PyNumber_Power(v, w, z); |
| } |
| |
| PyDoc_STRVAR(pow_doc, |
| "pow(x, y[, z]) -> number\n\ |
| \n\ |
| With two arguments, equivalent to x**y. With three arguments,\n\ |
| equivalent to (x**y) % z, but may be more efficient (e.g. for longs)."); |
| |
| |
| |
| static PyObject * |
| builtin_print(PyObject *self, PyObject *args, PyObject *kwds) |
| { |
| static char *kwlist[] = {"sep", "end", "file", 0}; |
| static PyObject *dummy_args; |
| PyObject *sep = NULL, *end = NULL, *file = NULL; |
| int i, err; |
| |
| if (dummy_args == NULL) { |
| if (!(dummy_args = PyTuple_New(0))) |
| return NULL; |
| } |
| if (!PyArg_ParseTupleAndKeywords(dummy_args, kwds, "|OOO:print", |
| kwlist, &sep, &end, &file)) |
| return NULL; |
| if (file == NULL || file == Py_None) { |
| file = PySys_GetObject("stdout"); |
| /* sys.stdout may be None when FILE* stdout isn't connected */ |
| if (file == Py_None) |
| Py_RETURN_NONE; |
| } |
| |
| if (sep == Py_None) { |
| sep = NULL; |
| } |
| else if (sep && !PyUnicode_Check(sep)) { |
| PyErr_Format(PyExc_TypeError, |
| "sep must be None or a string, not %.200s", |
| sep->ob_type->tp_name); |
| return NULL; |
| } |
| if (end == Py_None) { |
| end = NULL; |
| } |
| else if (end && !PyUnicode_Check(end)) { |
| PyErr_Format(PyExc_TypeError, |
| "end must be None or a string, not %.200s", |
| end->ob_type->tp_name); |
| return NULL; |
| } |
| |
| for (i = 0; i < PyTuple_Size(args); i++) { |
| if (i > 0) { |
| if (sep == NULL) |
| err = PyFile_WriteString(" ", file); |
| else |
| err = PyFile_WriteObject(sep, file, |
| Py_PRINT_RAW); |
| if (err) |
| return NULL; |
| } |
| err = PyFile_WriteObject(PyTuple_GetItem(args, i), file, |
| Py_PRINT_RAW); |
| if (err) |
| return NULL; |
| } |
| |
| if (end == NULL) |
| err = PyFile_WriteString("\n", file); |
| else |
| err = PyFile_WriteObject(end, file, Py_PRINT_RAW); |
| if (err) |
| return NULL; |
| |
| Py_RETURN_NONE; |
| } |
| |
| PyDoc_STRVAR(print_doc, |
| "print(value, ..., sep=' ', end='\\n', file=sys.stdout)\n\ |
| \n\ |
| Prints the values to a stream, or to sys.stdout by default.\n\ |
| Optional keyword arguments:\n\ |
| file: a file-like object (stream); defaults to the current sys.stdout.\n\ |
| sep: string inserted between values, default a space.\n\ |
| end: string appended after the last value, default a newline."); |
| |
| |
| static PyObject * |
| builtin_input(PyObject *self, PyObject *args) |
| { |
| PyObject *promptarg = NULL; |
| PyObject *fin = PySys_GetObject("stdin"); |
| PyObject *fout = PySys_GetObject("stdout"); |
| PyObject *ferr = PySys_GetObject("stderr"); |
| PyObject *tmp; |
| long fd; |
| int tty; |
| |
| /* Parse arguments */ |
| if (!PyArg_UnpackTuple(args, "input", 0, 1, &promptarg)) |
| return NULL; |
| |
| /* Check that stdin/out/err are intact */ |
| if (fin == NULL || fin == Py_None) { |
| PyErr_SetString(PyExc_RuntimeError, |
| "input(): lost sys.stdin"); |
| return NULL; |
| } |
| if (fout == NULL || fout == Py_None) { |
| PyErr_SetString(PyExc_RuntimeError, |
| "input(): lost sys.stdout"); |
| return NULL; |
| } |
| if (ferr == NULL || ferr == Py_None) { |
| PyErr_SetString(PyExc_RuntimeError, |
| "input(): lost sys.stderr"); |
| return NULL; |
| } |
| |
| /* First of all, flush stderr */ |
| tmp = PyObject_CallMethod(ferr, "flush", ""); |
| if (tmp == NULL) |
| PyErr_Clear(); |
| else |
| Py_DECREF(tmp); |
| |
| /* We should only use (GNU) readline if Python's sys.stdin and |
| sys.stdout are the same as C's stdin and stdout, because we |
| need to pass it those. */ |
| tmp = PyObject_CallMethod(fin, "fileno", ""); |
| if (tmp == NULL) { |
| PyErr_Clear(); |
| tty = 0; |
| } |
| else { |
| fd = PyLong_AsLong(tmp); |
| Py_DECREF(tmp); |
| if (fd < 0 && PyErr_Occurred()) |
| return NULL; |
| tty = fd == fileno(stdin) && isatty(fd); |
| } |
| if (tty) { |
| tmp = PyObject_CallMethod(fout, "fileno", ""); |
| if (tmp == NULL) |
| PyErr_Clear(); |
| else { |
| fd = PyLong_AsLong(tmp); |
| Py_DECREF(tmp); |
| if (fd < 0 && PyErr_Occurred()) |
| return NULL; |
| tty = fd == fileno(stdout) && isatty(fd); |
| } |
| } |
| |
| /* If we're interactive, use (GNU) readline */ |
| if (tty) { |
| PyObject *po; |
| char *prompt; |
| char *s; |
| PyObject *stdin_encoding; |
| char *stdin_encoding_str; |
| PyObject *result; |
| size_t len; |
| |
| stdin_encoding = PyObject_GetAttrString(fin, "encoding"); |
| if (!stdin_encoding) |
| /* stdin is a text stream, so it must have an |
| encoding. */ |
| return NULL; |
| stdin_encoding_str = _PyUnicode_AsString(stdin_encoding); |
| if (stdin_encoding_str == NULL) { |
| Py_DECREF(stdin_encoding); |
| return NULL; |
| } |
| tmp = PyObject_CallMethod(fout, "flush", ""); |
| if (tmp == NULL) |
| PyErr_Clear(); |
| else |
| Py_DECREF(tmp); |
| if (promptarg != NULL) { |
| PyObject *stringpo; |
| PyObject *stdout_encoding; |
| char *stdout_encoding_str; |
| stdout_encoding = PyObject_GetAttrString(fout, "encoding"); |
| if (stdout_encoding == NULL) { |
| Py_DECREF(stdin_encoding); |
| return NULL; |
| } |
| stdout_encoding_str = _PyUnicode_AsString(stdout_encoding); |
| if (stdout_encoding_str == NULL) { |
| Py_DECREF(stdin_encoding); |
| Py_DECREF(stdout_encoding); |
| return NULL; |
| } |
| stringpo = PyObject_Str(promptarg); |
| if (stringpo == NULL) { |
| Py_DECREF(stdin_encoding); |
| Py_DECREF(stdout_encoding); |
| return NULL; |
| } |
| po = PyUnicode_AsEncodedString(stringpo, |
| stdout_encoding_str, NULL); |
| Py_DECREF(stdout_encoding); |
| Py_DECREF(stringpo); |
| if (po == NULL) { |
| Py_DECREF(stdin_encoding); |
| return NULL; |
| } |
| prompt = PyBytes_AsString(po); |
| if (prompt == NULL) { |
| Py_DECREF(stdin_encoding); |
| Py_DECREF(po); |
| return NULL; |
| } |
| } |
| else { |
| po = NULL; |
| prompt = ""; |
| } |
| s = PyOS_Readline(stdin, stdout, prompt); |
| Py_XDECREF(po); |
| if (s == NULL) { |
| if (!PyErr_Occurred()) |
| PyErr_SetNone(PyExc_KeyboardInterrupt); |
| Py_DECREF(stdin_encoding); |
| return NULL; |
| } |
| |
| len = strlen(s); |
| if (len == 0) { |
| PyErr_SetNone(PyExc_EOFError); |
| result = NULL; |
| } |
| else { |
| if (len > PY_SSIZE_T_MAX) { |
| PyErr_SetString(PyExc_OverflowError, |
| "input: input too long"); |
| result = NULL; |
| } |
| else { |
| len--; /* strip trailing '\n' */ |
| if (len != 0 && s[len-1] == '\r') |
| len--; /* strip trailing '\r' */ |
| result = PyUnicode_Decode(s, len, stdin_encoding_str, NULL); |
| } |
| } |
| Py_DECREF(stdin_encoding); |
| PyMem_FREE(s); |
| return result; |
| } |
| |
| /* Fallback if we're not interactive */ |
| if (promptarg != NULL) { |
| if (PyFile_WriteObject(promptarg, fout, Py_PRINT_RAW) != 0) |
| return NULL; |
| } |
| tmp = PyObject_CallMethod(fout, "flush", ""); |
| if (tmp == NULL) |
| PyErr_Clear(); |
| else |
| Py_DECREF(tmp); |
| return PyFile_GetLine(fin, -1); |
| } |
| |
| PyDoc_STRVAR(input_doc, |
| "input([prompt]) -> string\n\ |
| \n\ |
| Read a string from standard input. The trailing newline is stripped.\n\ |
| If the user hits EOF (Unix: Ctl-D, Windows: Ctl-Z+Return), raise EOFError.\n\ |
| On Unix, GNU readline is used if enabled. The prompt string, if given,\n\ |
| is printed without a trailing newline before reading."); |
| |
| |
| static PyObject * |
| builtin_repr(PyObject *self, PyObject *v) |
| { |
| return PyObject_Repr(v); |
| } |
| |
| PyDoc_STRVAR(repr_doc, |
| "repr(object) -> string\n\ |
| \n\ |
| Return the canonical string representation of the object.\n\ |
| For most object types, eval(repr(object)) == object."); |
| |
| |
| static PyObject * |
| builtin_round(PyObject *self, PyObject *args, PyObject *kwds) |
| { |
| static PyObject *round_str = NULL; |
| PyObject *ndigits = NULL; |
| static char *kwlist[] = {"number", "ndigits", 0}; |
| PyObject *number, *round; |
| |
| if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O:round", |
| kwlist, &number, &ndigits)) |
| return NULL; |
| |
| if (Py_TYPE(number)->tp_dict == NULL) { |
| if (PyType_Ready(Py_TYPE(number)) < 0) |
| return NULL; |
| } |
| |
| if (round_str == NULL) { |
| round_str = PyUnicode_InternFromString("__round__"); |
| if (round_str == NULL) |
| return NULL; |
| } |
| |
| round = _PyType_Lookup(Py_TYPE(number), round_str); |
| if (round == NULL) { |
| PyErr_Format(PyExc_TypeError, |
| "type %.100s doesn't define __round__ method", |
| Py_TYPE(number)->tp_name); |
| return NULL; |
| } |
| |
| if (ndigits == NULL) |
| return PyObject_CallFunction(round, "O", number); |
| else |
| return PyObject_CallFunction(round, "OO", number, ndigits); |
| } |
| |
| PyDoc_STRVAR(round_doc, |
| "round(number[, ndigits]) -> number\n\ |
| \n\ |
| Round a number to a given precision in decimal digits (default 0 digits).\n\ |
| This returns an int when called with one argument, otherwise the\n\ |
| same type as the number. ndigits may be negative."); |
| |
| |
| static PyObject * |
| builtin_sorted(PyObject *self, PyObject *args, PyObject *kwds) |
| { |
| PyObject *newlist, *v, *seq, *keyfunc=NULL, *newargs; |
| PyObject *callable; |
| static char *kwlist[] = {"iterable", "key", "reverse", 0}; |
| int reverse; |
| |
| /* args 1-3 should match listsort in Objects/listobject.c */ |
| if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|Oi:sorted", |
| kwlist, &seq, &keyfunc, &reverse)) |
| return NULL; |
| |
| newlist = PySequence_List(seq); |
| if (newlist == NULL) |
| return NULL; |
| |
| callable = PyObject_GetAttrString(newlist, "sort"); |
| if (callable == NULL) { |
| Py_DECREF(newlist); |
| return NULL; |
| } |
| |
| newargs = PyTuple_GetSlice(args, 1, 4); |
| if (newargs == NULL) { |
| Py_DECREF(newlist); |
| Py_DECREF(callable); |
| return NULL; |
| } |
| |
| v = PyObject_Call(callable, newargs, kwds); |
| Py_DECREF(newargs); |
| Py_DECREF(callable); |
| if (v == NULL) { |
| Py_DECREF(newlist); |
| return NULL; |
| } |
| Py_DECREF(v); |
| return newlist; |
| } |
| |
| PyDoc_STRVAR(sorted_doc, |
| "sorted(iterable, key=None, reverse=False) --> new sorted list"); |
| |
| static PyObject * |
| builtin_vars(PyObject *self, PyObject *args) |
| { |
| PyObject *v = NULL; |
| PyObject *d; |
| |
| if (!PyArg_UnpackTuple(args, "vars", 0, 1, &v)) |
| return NULL; |
| if (v == NULL) { |
| d = PyEval_GetLocals(); |
| if (d == NULL) { |
| if (!PyErr_Occurred()) |
| PyErr_SetString(PyExc_SystemError, |
| "vars(): no locals!?"); |
| } |
| else |
| Py_INCREF(d); |
| } |
| else { |
| d = PyObject_GetAttrString(v, "__dict__"); |
| if (d == NULL) { |
| PyErr_SetString(PyExc_TypeError, |
| "vars() argument must have __dict__ attribute"); |
| return NULL; |
| } |
| } |
| return d; |
| } |
| |
| PyDoc_STRVAR(vars_doc, |
| "vars([object]) -> dictionary\n\ |
| \n\ |
| Without arguments, equivalent to locals().\n\ |
| With an argument, equivalent to object.__dict__."); |
| |
| static PyObject* |
| builtin_sum(PyObject *self, PyObject *args) |
| { |
| PyObject *seq; |
| PyObject *result = NULL; |
| PyObject *temp, *item, *iter; |
| |
| if (!PyArg_UnpackTuple(args, "sum", 1, 2, &seq, &result)) |
| return NULL; |
| |
| iter = PyObject_GetIter(seq); |
| if (iter == NULL) |
| return NULL; |
| |
| if (result == NULL) { |
| result = PyLong_FromLong(0); |
| if (result == NULL) { |
| Py_DECREF(iter); |
| return NULL; |
| } |
| } else { |
| /* reject string values for 'start' parameter */ |
| if (PyUnicode_Check(result)) { |
| PyErr_SetString(PyExc_TypeError, |
| "sum() can't sum strings [use ''.join(seq) instead]"); |
| Py_DECREF(iter); |
| return NULL; |
| } |
| if (PyByteArray_Check(result)) { |
| PyErr_SetString(PyExc_TypeError, |
| "sum() can't sum bytes [use b''.join(seq) instead]"); |
| Py_DECREF(iter); |
| return NULL; |
| } |
| |
| Py_INCREF(result); |
| } |
| |
| #ifndef SLOW_SUM |
| /* Fast addition by keeping temporary sums in C instead of new Python objects. |
| Assumes all inputs are the same type. If the assumption fails, default |
| to the more general routine. |
| */ |
| if (PyLong_CheckExact(result)) { |
| int overflow; |
| long i_result = PyLong_AsLongAndOverflow(result, &overflow); |
| /* If this already overflowed, don't even enter the loop. */ |
| if (overflow == 0) { |
| Py_DECREF(result); |
| result = NULL; |
| } |
| while(result == NULL) { |
| item = PyIter_Next(iter); |
| if (item == NULL) { |
| Py_DECREF(iter); |
| if (PyErr_Occurred()) |
| return NULL; |
| return PyLong_FromLong(i_result); |
| } |
| if (PyLong_CheckExact(item)) { |
| long b = PyLong_AsLongAndOverflow(item, &overflow); |
| long x = i_result + b; |
| if (overflow == 0 && ((x^i_result) >= 0 || (x^b) >= 0)) { |
| i_result = x; |
| Py_DECREF(item); |
| continue; |
| } |
| } |
| /* Either overflowed or is not an int. Restore real objects and process normally */ |
| result = PyLong_FromLong(i_result); |
| temp = PyNumber_Add(result, item); |
| Py_DECREF(result); |
| Py_DECREF(item); |
| result = temp; |
| if (result == NULL) { |
| Py_DECREF(iter); |
| return NULL; |
| } |
| } |
| } |
| |
| if (PyFloat_CheckExact(result)) { |
| double f_result = PyFloat_AS_DOUBLE(result); |
| Py_DECREF(result); |
| result = NULL; |
| while(result == NULL) { |
| item = PyIter_Next(iter); |
| if (item == NULL) { |
| Py_DECREF(iter); |
| if (PyErr_Occurred()) |
| return NULL; |
| return PyFloat_FromDouble(f_result); |
| } |
| if (PyFloat_CheckExact(item)) { |
| PyFPE_START_PROTECT("add", Py_DECREF(item); Py_DECREF(iter); return 0) |
| f_result += PyFloat_AS_DOUBLE(item); |
| PyFPE_END_PROTECT(f_result) |
| Py_DECREF(item); |
| continue; |
| } |
| if (PyLong_CheckExact(item)) { |
| long value; |
| int overflow; |
| value = PyLong_AsLongAndOverflow(item, &overflow); |
| if (!overflow) { |
| PyFPE_START_PROTECT("add", Py_DECREF(item); Py_DECREF(iter); return 0) |
| f_result += (double)value; |
| PyFPE_END_PROTECT(f_result) |
| Py_DECREF(item); |
| continue; |
| } |
| } |
| result = PyFloat_FromDouble(f_result); |
| temp = PyNumber_Add(result, item); |
| Py_DECREF(result); |
| Py_DECREF(item); |
| result = temp; |
| if (result == NULL) { |
| Py_DECREF(iter); |
| return NULL; |
| } |
| } |
| } |
| #endif |
| |
| for(;;) { |
| item = PyIter_Next(iter); |
| if (item == NULL) { |
| /* error, or end-of-sequence */ |
| if (PyErr_Occurred()) { |
| Py_DECREF(result); |
| result = NULL; |
| } |
| break; |
| } |
| /* It's tempting to use PyNumber_InPlaceAdd instead of |
| PyNumber_Add here, to avoid quadratic running time |
| when doing 'sum(list_of_lists, [])'. However, this |
| would produce a change in behaviour: a snippet like |
| |
| empty = [] |
| sum([[x] for x in range(10)], empty) |
| |
| would change the value of empty. */ |
| temp = PyNumber_Add(result, item); |
| Py_DECREF(result); |
| Py_DECREF(item); |
| result = temp; |
| if (result == NULL) |
| break; |
| } |
| Py_DECREF(iter); |
| return result; |
| } |
| |
| PyDoc_STRVAR(sum_doc, |
| "sum(iterable[, start]) -> value\n\ |
| \n\ |
| Returns the sum of an iterable of numbers (NOT strings) plus the value\n\ |
| of parameter 'start' (which defaults to 0). When the iterable is\n\ |
| empty, returns start."); |
| |
| |
| static PyObject * |
| builtin_isinstance(PyObject *self, PyObject *args) |
| { |
| PyObject *inst; |
| PyObject *cls; |
| int retval; |
| |
| if (!PyArg_UnpackTuple(args, "isinstance", 2, 2, &inst, &cls)) |
| return NULL; |
| |
| retval = PyObject_IsInstance(inst, cls); |
| if (retval < 0) |
| return NULL; |
| return PyBool_FromLong(retval); |
| } |
| |
| PyDoc_STRVAR(isinstance_doc, |
| "isinstance(object, class-or-type-or-tuple) -> bool\n\ |
| \n\ |
| Return whether an object is an instance of a class or of a subclass thereof.\n\ |
| With a type as second argument, return whether that is the object's type.\n\ |
| The form using a tuple, isinstance(x, (A, B, ...)), is a shortcut for\n\ |
| isinstance(x, A) or isinstance(x, B) or ... (etc.)."); |
| |
| |
| static PyObject * |
| builtin_issubclass(PyObject *self, PyObject *args) |
| { |
| PyObject *derived; |
| PyObject *cls; |
| int retval; |
| |
| if (!PyArg_UnpackTuple(args, "issubclass", 2, 2, &derived, &cls)) |
| return NULL; |
| |
| retval = PyObject_IsSubclass(derived, cls); |
| if (retval < 0) |
| return NULL; |
| return PyBool_FromLong(retval); |
| } |
| |
| PyDoc_STRVAR(issubclass_doc, |
| "issubclass(C, B) -> bool\n\ |
| \n\ |
| Return whether class C is a subclass (i.e., a derived class) of class B.\n\ |
| When using a tuple as the second argument issubclass(X, (A, B, ...)),\n\ |
| is a shortcut for issubclass(X, A) or issubclass(X, B) or ... (etc.)."); |
| |
| |
| typedef struct { |
| PyObject_HEAD |
| Py_ssize_t tuplesize; |
| PyObject *ittuple; /* tuple of iterators */ |
| PyObject *result; |
| } zipobject; |
| |
| static PyObject * |
| zip_new(PyTypeObject *type, PyObject *args, PyObject *kwds) |
| { |
| zipobject *lz; |
| Py_ssize_t i; |
| PyObject *ittuple; /* tuple of iterators */ |
| PyObject *result; |
| Py_ssize_t tuplesize = PySequence_Length(args); |
| |
| if (type == &PyZip_Type && !_PyArg_NoKeywords("zip()", kwds)) |
| return NULL; |
| |
| /* args must be a tuple */ |
| assert(PyTuple_Check(args)); |
| |
| /* obtain iterators */ |
| ittuple = PyTuple_New(tuplesize); |
| if (ittuple == NULL) |
| return NULL; |
| for (i=0; i < tuplesize; ++i) { |
| PyObject *item = PyTuple_GET_ITEM(args, i); |
| PyObject *it = PyObject_GetIter(item); |
| if (it == NULL) { |
| if (PyErr_ExceptionMatches(PyExc_TypeError)) |
| PyErr_Format(PyExc_TypeError, |
| "zip argument #%zd must support iteration", |
| i+1); |
| Py_DECREF(ittuple); |
| return NULL; |
| } |
| PyTuple_SET_ITEM(ittuple, i, it); |
| } |
| |
| /* create a result holder */ |
| result = PyTuple_New(tuplesize); |
| if (result == NULL) { |
| Py_DECREF(ittuple); |
| return NULL; |
| } |
| for (i=0 ; i < tuplesize ; i++) { |
| Py_INCREF(Py_None); |
| PyTuple_SET_ITEM(result, i, Py_None); |
| } |
| |
| /* create zipobject structure */ |
| lz = (zipobject *)type->tp_alloc(type, 0); |
| if (lz == NULL) { |
| Py_DECREF(ittuple); |
| Py_DECREF(result); |
| return NULL; |
| } |
| lz->ittuple = ittuple; |
| lz->tuplesize = tuplesize; |
| lz->result = result; |
| |
| return (PyObject *)lz; |
| } |
| |
| static void |
| zip_dealloc(zipobject *lz) |
| { |
| PyObject_GC_UnTrack(lz); |
| Py_XDECREF(lz->ittuple); |
| Py_XDECREF(lz->result); |
| Py_TYPE(lz)->tp_free(lz); |
| } |
| |
| static int |
| zip_traverse(zipobject *lz, visitproc visit, void *arg) |
| { |
| Py_VISIT(lz->ittuple); |
| Py_VISIT(lz->result); |
| return 0; |
| } |
| |
| static PyObject * |
| zip_next(zipobject *lz) |
| { |
| Py_ssize_t i; |
| Py_ssize_t tuplesize = lz->tuplesize; |
| PyObject *result = lz->result; |
| PyObject *it; |
| PyObject *item; |
| PyObject *olditem; |
| |
| if (tuplesize == 0) |
| return NULL; |
| if (Py_REFCNT(result) == 1) { |
| Py_INCREF(result); |
| for (i=0 ; i < tuplesize ; i++) { |
| it = PyTuple_GET_ITEM(lz->ittuple, i); |
| item = (*Py_TYPE(it)->tp_iternext)(it); |
| if (item == NULL) { |
| Py_DECREF(result); |
| return NULL; |
| } |
| olditem = PyTuple_GET_ITEM(result, i); |
| PyTuple_SET_ITEM(result, i, item); |
| Py_DECREF(olditem); |
| } |
| } else { |
| result = PyTuple_New(tuplesize); |
| if (result == NULL) |
| return NULL; |
| for (i=0 ; i < tuplesize ; i++) { |
| it = PyTuple_GET_ITEM(lz->ittuple, i); |
| item = (*Py_TYPE(it)->tp_iternext)(it); |
| if (item == NULL) { |
| Py_DECREF(result); |
| return NULL; |
| } |
| PyTuple_SET_ITEM(result, i, item); |
| } |
| } |
| return result; |
| } |
| |
| PyDoc_STRVAR(zip_doc, |
| "zip(iter1 [,iter2 [...]]) --> zip object\n\ |
| \n\ |
| Return a zip object whose .__next__() method returns a tuple where\n\ |
| the i-th element comes from the i-th iterable argument. The .__next__()\n\ |
| method continues until the shortest iterable in the argument sequence\n\ |
| is exhausted and then it raises StopIteration."); |
| |
| PyTypeObject PyZip_Type = { |
| PyVarObject_HEAD_INIT(&PyType_Type, 0) |
| "zip", /* tp_name */ |
| sizeof(zipobject), /* tp_basicsize */ |
| 0, /* tp_itemsize */ |
| /* methods */ |
| (destructor)zip_dealloc, /* tp_dealloc */ |
| 0, /* tp_print */ |
| 0, /* tp_getattr */ |
| 0, /* tp_setattr */ |
| 0, /* tp_reserved */ |
| 0, /* tp_repr */ |
| 0, /* tp_as_number */ |
| 0, /* tp_as_sequence */ |
| 0, /* tp_as_mapping */ |
| 0, /* tp_hash */ |
| 0, /* tp_call */ |
| 0, /* tp_str */ |
| PyObject_GenericGetAttr, /* tp_getattro */ |
| 0, /* tp_setattro */ |
| 0, /* tp_as_buffer */ |
| Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | |
| Py_TPFLAGS_BASETYPE, /* tp_flags */ |
| zip_doc, /* tp_doc */ |
| (traverseproc)zip_traverse, /* tp_traverse */ |
| 0, /* tp_clear */ |
| 0, /* tp_richcompare */ |
| 0, /* tp_weaklistoffset */ |
| PyObject_SelfIter, /* tp_iter */ |
| (iternextfunc)zip_next, /* tp_iternext */ |
| 0, /* tp_methods */ |
| 0, /* tp_members */ |
| 0, /* tp_getset */ |
| 0, /* tp_base */ |
| 0, /* tp_dict */ |
| 0, /* tp_descr_get */ |
| 0, /* tp_descr_set */ |
| 0, /* tp_dictoffset */ |
| 0, /* tp_init */ |
| PyType_GenericAlloc, /* tp_alloc */ |
| zip_new, /* tp_new */ |
| PyObject_GC_Del, /* tp_free */ |
| }; |
| |
| |
| static PyMethodDef builtin_methods[] = { |
| {"__build_class__", (PyCFunction)builtin___build_class__, |
| METH_VARARGS | METH_KEYWORDS, build_class_doc}, |
| {"__import__", (PyCFunction)builtin___import__, METH_VARARGS | METH_KEYWORDS, import_doc}, |
| {"abs", builtin_abs, METH_O, abs_doc}, |
| {"all", builtin_all, METH_O, all_doc}, |
| {"any", builtin_any, METH_O, any_doc}, |
| {"ascii", builtin_ascii, METH_O, ascii_doc}, |
| {"bin", builtin_bin, METH_O, bin_doc}, |
| {"callable", builtin_callable, METH_O, callable_doc}, |
| {"chr", builtin_chr, METH_VARARGS, chr_doc}, |
| {"compile", (PyCFunction)builtin_compile, METH_VARARGS | METH_KEYWORDS, compile_doc}, |
| {"delattr", builtin_delattr, METH_VARARGS, delattr_doc}, |
| {"dir", builtin_dir, METH_VARARGS, dir_doc}, |
| {"divmod", builtin_divmod, METH_VARARGS, divmod_doc}, |
| {"eval", builtin_eval, METH_VARARGS, eval_doc}, |
| {"exec", builtin_exec, METH_VARARGS, exec_doc}, |
| {"format", builtin_format, METH_VARARGS, format_doc}, |
| {"getattr", builtin_getattr, METH_VARARGS, getattr_doc}, |
| {"globals", (PyCFunction)builtin_globals, METH_NOARGS, globals_doc}, |
| {"hasattr", builtin_hasattr, METH_VARARGS, hasattr_doc}, |
| {"hash", builtin_hash, METH_O, hash_doc}, |
| {"hex", builtin_hex, METH_O, hex_doc}, |
| {"id", builtin_id, METH_O, id_doc}, |
| {"input", builtin_input, METH_VARARGS, input_doc}, |
| {"isinstance", builtin_isinstance, METH_VARARGS, isinstance_doc}, |
| {"issubclass", builtin_issubclass, METH_VARARGS, issubclass_doc}, |
| {"iter", builtin_iter, METH_VARARGS, iter_doc}, |
| {"len", builtin_len, METH_O, len_doc}, |
| {"locals", (PyCFunction)builtin_locals, METH_NOARGS, locals_doc}, |
| {"max", (PyCFunction)builtin_max, METH_VARARGS | METH_KEYWORDS, max_doc}, |
| {"min", (PyCFunction)builtin_min, METH_VARARGS | METH_KEYWORDS, min_doc}, |
| {"next", (PyCFunction)builtin_next, METH_VARARGS, next_doc}, |
| {"oct", builtin_oct, METH_O, oct_doc}, |
| {"ord", builtin_ord, METH_O, ord_doc}, |
| {"pow", builtin_pow, METH_VARARGS, pow_doc}, |
| {"print", (PyCFunction)builtin_print, METH_VARARGS | METH_KEYWORDS, print_doc}, |
| {"repr", builtin_repr, METH_O, repr_doc}, |
| {"round", (PyCFunction)builtin_round, METH_VARARGS | METH_KEYWORDS, round_doc}, |
| {"setattr", builtin_setattr, METH_VARARGS, setattr_doc}, |
| {"sorted", (PyCFunction)builtin_sorted, METH_VARARGS | METH_KEYWORDS, sorted_doc}, |
| {"sum", builtin_sum, METH_VARARGS, sum_doc}, |
| {"vars", builtin_vars, METH_VARARGS, vars_doc}, |
| {NULL, NULL}, |
| }; |
| |
| PyDoc_STRVAR(builtin_doc, |
| "Built-in functions, exceptions, and other objects.\n\ |
| \n\ |
| Noteworthy: None is the `nil' object; Ellipsis represents `...' in slices."); |
| |
| static struct PyModuleDef builtinsmodule = { |
| PyModuleDef_HEAD_INIT, |
| "builtins", |
| builtin_doc, |
| -1, /* multiple "initialization" just copies the module dict. */ |
| builtin_methods, |
| NULL, |
| NULL, |
| NULL, |
| NULL |
| }; |
| |
| |
| PyObject * |
| _PyBuiltin_Init(void) |
| { |
| PyObject *mod, *dict, *debug; |
| mod = PyModule_Create(&builtinsmodule); |
| if (mod == NULL) |
| return NULL; |
| dict = PyModule_GetDict(mod); |
| |
| #ifdef Py_TRACE_REFS |
| /* "builtins" exposes a number of statically allocated objects |
| * that, before this code was added in 2.3, never showed up in |
| * the list of "all objects" maintained by Py_TRACE_REFS. As a |
| * result, programs leaking references to None and False (etc) |
| * couldn't be diagnosed by examining sys.getobjects(0). |
| */ |
| #define ADD_TO_ALL(OBJECT) _Py_AddToAllObjects((PyObject *)(OBJECT), 0) |
| #else |
| #define ADD_TO_ALL(OBJECT) (void)0 |
| #endif |
| |
| #define SETBUILTIN(NAME, OBJECT) \ |
| if (PyDict_SetItemString(dict, NAME, (PyObject *)OBJECT) < 0) \ |
| return NULL; \ |
| ADD_TO_ALL(OBJECT) |
| |
| SETBUILTIN("None", Py_None); |
| SETBUILTIN("Ellipsis", Py_Ellipsis); |
| SETBUILTIN("NotImplemented", Py_NotImplemented); |
| SETBUILTIN("False", Py_False); |
| SETBUILTIN("True", Py_True); |
| SETBUILTIN("bool", &PyBool_Type); |
| SETBUILTIN("memoryview", &PyMemoryView_Type); |
| SETBUILTIN("bytearray", &PyByteArray_Type); |
| SETBUILTIN("bytes", &PyBytes_Type); |
| SETBUILTIN("classmethod", &PyClassMethod_Type); |
| SETBUILTIN("complex", &PyComplex_Type); |
| SETBUILTIN("dict", &PyDict_Type); |
| SETBUILTIN("enumerate", &PyEnum_Type); |
| SETBUILTIN("filter", &PyFilter_Type); |
| SETBUILTIN("float", &PyFloat_Type); |
| SETBUILTIN("frozenset", &PyFrozenSet_Type); |
| SETBUILTIN("property", &PyProperty_Type); |
| SETBUILTIN("int", &PyLong_Type); |
| SETBUILTIN("list", &PyList_Type); |
| SETBUILTIN("map", &PyMap_Type); |
| SETBUILTIN("object", &PyBaseObject_Type); |
| SETBUILTIN("range", &PyRange_Type); |
| SETBUILTIN("reversed", &PyReversed_Type); |
| SETBUILTIN("set", &PySet_Type); |
| SETBUILTIN("slice", &PySlice_Type); |
| SETBUILTIN("staticmethod", &PyStaticMethod_Type); |
| SETBUILTIN("str", &PyUnicode_Type); |
| SETBUILTIN("super", &PySuper_Type); |
| SETBUILTIN("tuple", &PyTuple_Type); |
| SETBUILTIN("type", &PyType_Type); |
| SETBUILTIN("zip", &PyZip_Type); |
| debug = PyBool_FromLong(Py_OptimizeFlag == 0); |
| if (PyDict_SetItemString(dict, "__debug__", debug) < 0) { |
| Py_XDECREF(debug); |
| return NULL; |
| } |
| Py_XDECREF(debug); |
| |
| return mod; |
| #undef ADD_TO_ALL |
| #undef SETBUILTIN |
| } |